Zinc(II) and PPi Selective Fluorescence OFF–ON–OFF Functionality of a Chemosensor in Physiological Conditions
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A fluorescent chemosensor based on a quinoline derivative, L2 (OFF state), selectively senses Zn2+ by effective chelate-enhanced fluorescence (ON state), which further shows selectivity toward PPi over competing anions like Pi, AMP, and ATP via fluorescence quenching (OFF state) in a 100% aqueous HEPES buffer (pH 7.4). A plausible mode for the selective binding of PPi to 1 has been demonstrated by quantum mechanical density functional theory calculations and high-resolution mass spectrometry analysis.
创建时间：
2016-02-23
